Winding apparatus



Y 1943. P. J.CHRISTMAN 18,056-

i WINDING APPARATUS Filed April 1', 1940 Patented May 4, 1943 I a I i 2,318,05 v f'wmnmo Arrsns'r'Us 7 T l 'e i We Application April-'1, 1940,1SerialNo; seine-4:.

V I so} ash edrooms; is. he desired-f ame invention. relates winding apparatus whicnis particularly. adapted for forming toilet i. Lml sIt el IOI a'etc. i a

' V YHei-etofore' in the forming'of paper ,rol'ls, it

has been necessary to stop the winding Operaanswer 'one'roll or set of rolls has been com- .pleted." Further; in the starting of new rolls, an funcertain windingioperation has resulted from methods employed; suchas} for example, the mandrel upon which the new roll is-to be formed. An object of the present invention isto provide means'jfor, continuouslyfwinding i rolls,: the 1 1 winding apparatus being kept continuously in operation; A; further object is t 'provide anonstop winding machine in which a peperjer other web'is continuously drawn upon c'ore's, the'cores fbeing'fremoved and newcores inserted without causing a'pause'in the winding operation." A further object is to provide greater certainty in operation and a better. product by. avoiding wetting of the cores and paper and providinga more positive means. for holding. hepaper-upo .the core; Other specific objects and 'advantag appear as the specification proceeds. v

The inventionis illustrated, in a preferred emilziodi'ment, by the accompanying drawing; in

which: V

Figure 1 is a schematic showing of the apparatus employed, the apparatus being shown in side elevation and partly in section; Fig. 2; a view similar to-Fig. 1- but showing only the forward portioniofithe apparatus with'the web cutting device in operative position; Fig. 3, anenlarged, brokenplan view'of a mandrel over which a core is partially advanced; Fig.4, an enlarged, transverse sestional-viewQthe section being taken as indicated at line 4 of Fig. 3; Fig. 5, an enlarged plan view of a portion or the cutting knife employed; and Fig. 6 is a side.elevational view of the cutting disks in engagement with a core.

In view of the fact that the greater 'po'rtionof the apparatus shown in the drawing is of old and well-known construction, a. detailed description thereof will not be necessary. The web of paper or other material is indicatedby-the numeral It, and it is drawn over a perforating bed roll I I, being held against the roll by the pull rolls l2 and I3. j Above the perforating bed roll i rotatably supported the well-knownadjustable perforating head I4. From the perforating structures just described, the web l passes .over the 'slitter board II and beneath the slitter discs l6. The slitter discs l8 are driven by a belt I! securedto a drive I A cutting knife i9 is supported upon an arm 20 55 tact with theweb iliandto, sever it, the severing position. of the'kn'ife being sh'own mm. 2. I The 2|, as shownmore clearly in Fig. 5. V

7 blade or knife lb prd,.v d, dw.ith'serrated edges 7 After the web 1 0' passes "beyond the 'slitter block' l5, it passes under an idler roll 22.

'li'he windingapparatus-consists aofa number 5 of rotatable mandrels; carried upon' a rotatable support 23. In -the ,illustration given,; there are described in detail; In such'well -known-c'on- "struction, drive ;apparatus (not shown) engages the mandrel whenitis in the position indicated by the letter 4, thus causing the paper web is to form a roll upon the core 21 carried bythe I mandrel. when the support 23 is swun'gso that the rotating mandrel n n Just describedis-movedto the positionindicated by the letter B, themaning the completed roll can be withdrawn, since in this operation the knife 48 seve'rsthe web Just,

ahead of position v as'shown more clearly; in

Fig; 2. After the roll or set of rolls on'the mandrel in position 13 iswithdrawn, new cores 21 may be inserted uponthe mandrel 24. The mandrel with the core thereon may then be moved to the slot cutting position indicated by the numeral lC. Here slots areformed in the coremade of cardboard orother material, the slots. being-indicated by thenumera128." v i g Each of theman'dr'els 24 isprovided with a hollow, longitudinal opening and with lateral openings 29 extending from the central passage.

' The lateral passages 29 open within-Q grooves ll formed at spaced intervals along thenr'nitndrel i24. Whenthecore This in .the properlposition,

the slots 28 are aligned with the grooves 34 v so that suction isapplied throughlthe central passage in the mandrel and from-thence through the openings '29 and the slots 28 When., the

mandrel 24 is swung into position A-,;th e opening inthe center of the mandrel communicates with. asu'ction'device (nOtiSllbWIlYI so thatdirect 'suc--' tion 'isapplied through pas sages 29' and-"slots 24.

- If desired, thecore 121' may i be: already? pen forated or slottedtbefore it"is inserted e;upo'n'i. the mandrel 24. I In the particular illustration given,

, however, I I provide; rfor; slotting 1 the; core aftetf. it has been placed upon the mandrel. The core t can be more readily inserted upon the mandrel Ti njin, v. inserted- 11F9 e grooves 30,

; 5, .-Operation H 1 I: In the operation of" the apparatus, the" web ll passes over the perforatingbed roll ll, being held tightly thereagainst by the pull rolls ,1!

and I3, andthe desired perforation is formed. therein by means of 'the rotation of the'perforating head ll. manner, over the slitter board ,,l5 by means of the slitter discs l6. It passes under the idler roll 22 and is wound upon the core ,2I ir ic-'= ,tionally engaging mandrel 24 inposition A; ":Afterfthef roll has i been substantially finished," asfdllustrated in Fig. 2, the supporting mandrerto position B.' Here'-the'mandrel ceases to rotate. Meanwhile, thefmandrelwhich was formerly in position Cyis swung to position A,

where it is engaged'by the drive apparatus and set n? rapid-rotation, The-cutting knife H) def"scends at this omentgrie -cuts theweb n beeienfpositions A and B. :The' completed roll *core imposition may then be removed .hej" on -frot atlngfmandrel and w' core fsuctio nds new eiie cti'vegcurls tightly aroun the "andrel and'is; heldfirmlythereon by 'suctlon.

' ,The rotation' of the, mandrel, Proceeds rapidly so i w uejt e above eperetien are being carried positions a'n' d- ,B, {the core which was mandrel formerly inposltion IB and now in position C, is provided with a plurality, of; spaced i tsjzs :aligned; with" the i i In this manner; the core is a pro- "[videdwith suction openings communicating with 'whe'sueuen openingsioi the mandrel; and is thus ready for the suction operation which starts when the, core is moved to position A, a

Thereis thus provided a cycle of operations infwhichlthe winding of the paper web, the

' removal of the finished roll and the "slotting of i the core areaccomplishedwithout interruption "of the windingoperation. The knife is operative for severing the web attire precise moment when thefinished roll is moved} out of winding posi- "tion and when a new core is brought into windin'g 'position,'; the severed portion of the webjadi ie'ee'nt'thejwina neeere being justabout sufliclent in f len h to "engage. the" winding core and Tier-mi gripp n contact [therewith so that the orward movement of i the web continues without lt 'thecores are perforated priorto theirinf core uponthe mandrel, whileat the same time it enables'an unslottedj core jto be placed upon themandrel in position B. j i

-While" in the foregoing" description, I have set Q',forth-certaindetails and' eerta'in steps as deshame, it" will---be" understood' that such steps The roll is slit, in .theusual;

mandrel. into windingiposition; the web carried -by'said first mandrel being brought adjacent said second'mandrel, means for severing said web between said first and second mandrels, said manvdrelsbeing provided with aplurality of suction openings adapted to cause the free end of the severed web::to adhere to the mandrel auto- "and means for creating suction in the openings Y frame,a plurality of spacedmandrels movably member); is rotated so a to' bring the winding of saidsecond mandrel when in winding position.

appet tes ert e character s ct mil, e

"position, means for moving afir'st' mandrelbeyondwinding' position topermi 2 emoval or the core thereon and for simultaneously-moving 1 a second mandrel into winding position, the web carried by said first mandrel beingv brought adjacent the core of saidf'seicond mandrehsaid core being equipped with openings therein,*meansfior severing said web between saidfirst andfsecond I mandrels, and suction means carried by'said' sec- 35.

end core-equipped mandrel in win ding'p'osltion for creating suction in the openings in the core cz'irri'e'd"the'reby to cause thefleading nee endv of saidsevered web to adhere automatically to the core of saidsecond' 'rnandrel.

3, memier'atus of the character setdorth, frame,-a plurality or spaced core-eduippedmandrels movably supportedf thereby', means renemange mandrel and the corecarried thereby when v moved 'into web winding position, fmeans for-moving a first mandrel beyond windinggposb. tion and simultaneously moving afsecond'mandrel into winding position, the web carriedby said (first c'ore-fequipped mandrel being brought "adjacent thecoreflof said second mandrel,;m eans for severing said webbetween-said firstandsecon'd mandrels and pressing 1 the leading 'seve'red end "portion towards the second mandrel, said *m'andrels and thecores carried-thereby being provided with a 'plu'r'ality, o1 suction.{openings adapted to cause the free end{ or the severed web to adhere to the mandrel automatically when under the influence of suction, and 'm'eans'ior creating suction inthe passagesof said second mandrel when in winding position.

4, Inapparatus er-the character setfrortma fraine',="a plurality fof -sp'aced mandrels movably s'uppr'irted' thereby, said mandrels being provided withsu'ctio'n' openingscommunieating'with the exterior of said mandrels; cores' extending ;:over

'said mandrels and covering said'openings, means formatting ama'n'dreljwhen moved to web- '-'iwinding position; means for'rnoving aflrst'man- 'drelbe'yond winding position and simultaneously moving a second mandrel into windingposition, *the' web carrled' b'y; said first mandrel {being brought adjacent said second mandrel, the core of said first mandrel being removable in's aid nonwlndin'g positionandbeingadapted to receive'a second core, means for cutting slots insaid sec- 0nd core whileon the mandrel to establish comasiaose munication between said slots and the suction passages in said mandrel, means for severing said web between said first andfsecond mandrels, and

means for creating suction in the passages of said cally to said second mandrel.

5. In winding apparatus, a frame, a movable support member mounted thereon, a plurality of spaced mandrels carried by said support and having suction openings therein, each of said mandrels being movable by said support into a web-winding position and a non-winding position, means for rotating a mandrel when in winding position and means for creating suction in the suction openings of the mandrel when-the same is in winding position, removable cores provided with openings communicating with the suction openings in said mandrels, and cutting means operative when the winding mandrel is moved to a non-winding position and another mandrelis moved to a winding position'ior cutting the web between said last-mentioned mandrels and directing the leading severed end portion into the pneumatic grip of the mandrel in winding position.

6. In winding apparatus, a frame, a movable support member mounted thereon, a plurality oi spaced mandrels carried by said support and having suction openings therein, each oi said -mandrels being movable by said support into a web-winding position and a non-winding position,'means for rotating a mandrel when in winding position, means for creating suction in the suction openings of a mandrel when the i same is in winding position, removable friction faces, said mandrels having a central suction passage and radial passages communicating with said grooves, each of said mandrels being movable by rotation of said support into a web-winding position and anon-winding position, means for rotating a mandrel when in winding position, means for creating suction in the central suction passage of the mandrel when it is in winding position, removable friction cores extending over said mandrels and covering said grooves, means engageable with said grooves for forming slots in said cores aligned with said grooves, and cut ting means operative when the winding mandrel is moved to a non-windingposition and another mandrel is moved to a winding position for cutting the web between said last-mentioned mandrels.

8. In winding apparatus, a frame, a rotatable support member mounted thereon, three spaced mandrels carried by said supporinand having spaced grooves extending about their periphery, said mandrels also having a central suction passage and radial passages establishing communication between said central passage and said grooves, each of said mandrels being movable by rotation of said support intoweb-winding position and two non-winding positions, the mandrels in non-winding positions being adapted to receive new cores, and cutting meanssupported adjacent one of said non-winding positions for engaging the core and cutting therethrough into the grooves to form aligned slots with said' grooves, and cutting means operative when the winding mandrel is moved to a non-winding position and another mandrel is moved to winding position for cutting the web between ,said.lastmentioned mandrels.

PEI'ER J. CHRISTMAN. 

